Distribution Protection

Schweitzer Engineering Laboratories, Inc. (SEL)

SEL distribution protection solutions provide complete primary and backup protection from all types of faults. Using these devices helps you avoid expensive equipment damage and failure while maintaining system performance and increasing availability.

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Feeder Protection

Schweitzer Engineering Laboratories, Inc.

Feeder protection improves the safety and reliability of your distribution feeder system by combining complete primary and backup protection with comprehensive overcurrent and arc-flash protection capabilities. These devices are suited for use in utility-, industrial-, and commercial-scale power systems.

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Recloser Controls

Schweitzer Engineering Laboratories, Inc.

Recloser controls provide fault location, isolation, and system restoration using protection and communications capabilities, such as Automatic Network Reconfiguration and single- and three-phase tripping. They allow you to automatically reconfigure your distribution system to isolate faults, quickly restore service, and reduce customer impact.

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Arc-Flash Protection

Schweitzer Engineering Laboratories, Inc.

Arc-flash detection technology significantly decreases the time it takes a relay to trip in response to an arc fault, thereby reducing hazardous incident energy. Combining light-sensing technology with fast overcurrent protection provides high-speed arc-flash detection and prevents overtripping for external faults. Arc-flash protection relays work with low- and medium-voltage apparatus and easily coordinate with other devices in utility-, industrial-, and commercial-scale power systems.

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Downed Conductor Detection

Schweitzer Engineering Laboratories, Inc.

Downed conductor detection technologies detect many high-impedance faults on a distribution system, improving safety as well as mitigating wildfire risk.

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Distribution Protection

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Feeder Protection

Recloser Controls

Arc-Flash Protection

Downed Conductor Detection